HelicoptersC/N From 1977 to 1980 and from 1991 to 1993 HFR20 delivered a detachment of 1 UH-1D at heliport Villingen - Schwenningen for Christoph 11. @ (optional) Send Locations YearsLocationICAO/FAA1991/93Villingen - Schwenningen 1977/80Villingen - Schwenningen ??/94Neuhausen ob EckEDSN Models Years Models ??/94 UH-1D